Facial mask heater



FIG. 1 is a front, top and right side perspective view of a facial mask heater, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a front and top side perspective view of the design shown in a position of use.

The broken lines in the drawings depict portions of the facial mask heater that form no part of the claimed design. 

CLAIM The ornamental design for a facial mask heater, as shown and described. 